Symphony of Science is back! The project, helmed by John D. Boswell (aka Melodysheep) had been putting together some fantastic music videos featuring autotuned scientists. Now, he’s collaborated with the Planetary Society for the latest video, Beyond the Horizon.

A young Carl Sagan comes to vivid life in “Star Stuff,” a short film by Croatian film director Ratimir Rakuljic. It offers a moving re-enactment of how a young boy from Brooklyn with an insatiable appetite for wonder and science grew up to become a beloved iconic figure in science communication and outreach.

Over the weekend, the LightSail satellite unfurled its gigantic solar sail to help propel it through space. Now, the first images to be beamed back from the satellite prove that it’s really up and running.

Cornell University’s Institute for Pale Blue Dots has a new name. Now called the Carl Sagan Institute: Pale Blue Dot and Beyond, the multidisciplinary research institute is dedicated to investigating the life-harboring potential of other planets, and to acquiring a richer understanding of our own.

“There’s just a tremendously exciting prospect called solar sailing. [It] travels on the radiation and particles that come out of the sun, the wind from the sun. Because it has a constant acceleration, it can get you around the inner part of the solar system a lot faster...than the usual sorts of rocket propulsion.”

If you’re ever feeling crappy about not getting recognition for your work, just remember that even Carl Sagan got negs from his scientific colleagues. In fact, he was never allowed into the National Academy of Sciences, despite all he did to popularize the scientific worldview.

It’s become a legend of the space age. The brilliant physicist Enrico Fermi, during a lunchtime conversation at Los Alamos National Laboratory in 1950, is supposed to have posed a conundrum for proponents of the existence of extraterrestrial civilizations:

"The nitrogen in our DNA, the calcium in our teeth, the iron in our blood, the carbon in our apple pies were made in the interiors of collapsing stars," Carl Sagan famously said in his 1980 series Cosmos. "We are made of starstuff."

25 years ago today, Voyager I turned around to take a photo of Earth on its way out of the Solar System. You are looking at it. Our planet—6 billion kilometers (3.7 billion miles) away from the spacecraft—is that tiny pale blue dot, "a mote of dustsuspended in a sunbeam." It is one of the most important photos ever.

Some enterprising soul decided to go through the classic Cosmos TV series and collect every single instance of beloved astronomer Carl Sagan pronouncing an "-illion" word in his unique, inimitable way in one, amazing supercut. There are infinitely worse ways to start the work week.

If Carl Sagan taught us anything about our universe in Cosmos, he taught us how small we are in the grand scheme of things. The universe deals in magnitudes far beyond our comprehension: billions of galaxies, trillions of stars, quadrillions of particles. So many, that one crazy fan compiled all those 'illions into…

I have seen countless science fiction movies and documentaries about the future of humanity. None of them were as inspiring, beautiful, and realistic as this extraordinary short film by Erik Wernquist, narrated by Carl Sagan. Watch it and get ready for goosebumps.

Just in time for what would have been Carl Sagan's 80th birthday, a pair of developers have put together a chatbot version of the famous scientist. It's set up as a chat therapy session — but you'll probably leave the conversation brimming with existential angst.